Datasheet > LTC1077

LTC1077

更新时间： 2022-03-18 16:53:28

品牌	Logo	应用领域
凌特 - Linear		传感器温度传感器
页数	文件大小	规格书
16页	236K
描述
Temperature Sensor with Alert Outputs Voltage Output Proportional to Temperature

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LTC1077 数据手册

LTC2996

Temperature Sensor with

Alert Outputs

FeaTures

DescripTion

The LTC^®2996 is a high accuracy temperature sensor

with adjustable overtemperature and undertemperature

thresholds and open drain alert outputs. It converts the

temperature of an external diode sensor or its own die

temperature to an analog output voltage while rejecting

errors due to noise and series resistance. The measured

temperature is compared against upper and lower limits

set with resistive dividers. If a threshold is exceeded, the

device communicates an alert by pulling low the corre-

spondent open drain logic output.

Converts Remote or Internal Diode Temperature to

Analog Voltage

Adjustable Overtemperature and Undertemperature

Thresholds

Voltage Output Proportional to Temperature

1°C Remote Temperature Accuracy

2°C Internal Temperature Accuracy

Built-In Series Resistance Cancellation

Open Drain Alert Outputs

2.25V to 5.5V Supply Voltage

1.8V Reference Voltage Output

The LTC2996 gives 1°C accurate temperature results

using commonly available NPN or PNP transistors or

temperature diodes built into modern digital devices. A

1.8V reference output simplifies threshold programming

and can be used as an ADC reference input.

200μA Quiescent Current

10-Lead 3mm × 3mm DFN Package

applicaTions

The LTC2996 provides an accurate, low power solution

for temperature monitoring in a compact 3mm × 3mm

DFN package.

Temperature Monitoring and Measurement

System Thermal Control

Network Servers

L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks of Linear

Technology Corporation. All other trademarks are the property of their respective owners.

Desktop and Notebook Computers

Environmental Monitoring

Typical applicaTion

Remote Temperature Monitor with Overtemperature

and Undertemperature Thresholds

V_PTATvs Remote

Diode Temperature

2.25V TO 5.5V

0.1µF

1.8

1.8V

43k

OT T > 70°C

UT T < –20°C

REF

1.6

TEMPERATURE

CONTROL

SYSTEM

1.4

LTC2996

VTH

VTL

36k

4mV/K

470pF

PTAT

1.2

102k

MMBT3904

1.0

–

GND

2996 TA01a

0.8

75 100

125 150

–50 –25

25 50

REMOTE DIODE TEMPERATURE (°C)

2996 TA01b

2996f

12 3 4 5 6 7...16

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